A weak shortwave trough crossed the Great Lakes during the evening of November 27th, with a corresponding surface low trailing behind it. Light snow overspread the region through the evening hours.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PBZ wrote it up.
A weak shortwave trough crossed the Great Lakes during the evening of November 27th, with a corresponding surface low trailing behind it. Light snow overspread the region through the evening hours. A second trough arrived around dawn on the 28th, pushing the light snow north of the area. Little upper level support and only a limited period of favorable snow growth tended to limit accumulations.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before the first event at Nov 27, 6:00 PM EST, 1 hour earlier.
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</html>Hazardous Weather Outlook National Weather Service Pittsburgh PA 301 PM EST Sat Nov 27 2021 OHZ039-040-048>050-057>059-068-069-PAZ029-031-WVZ001>004-012-021-509- 282015- Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum- Guernsey-Belmont-Noble-Monroe-Washington-Greene-Hancock-Brooke-Ohio- Marshall-Wetzel-Marion-Monongalia- 301 PM EST Sat Nov 27 2021 This Hazardous Weather Outlook is for east central Ohio, southwest Pennsylvania, and northern West Virginia. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. OHZ041-PAZ013>016-020>023-073>076-WVZ510>514-282015- Columbiana-Lawrence-Butler-Clarion-Jefferson PA-Beaver-Allegheny- Armstrong-Indiana-Westmoreland-Higher Elevations of Westmoreland- Fayette-Higher Elevations of Fayette- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 301 PM EST Sat Nov 27 2021 This Hazardous Weather Outlook is for east central Ohio, western Pennsylvania and northern West Virginia. .DAY ONE...This afternoon and tonight. Snowfall accumulation of up to 2 inches is expected from this evening through the overnight. Locally slippery travel conditions are expected on any untreated surfaces. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A second wave of snowfall will occur late Sunday through Monday morning. Snowfall amounts of up to 2 inches is possible in locally heavier bands and across higher terrain. Untreated surfaces may become slick. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. PAZ007>009-282015- Mercer-Venango-Forest- 301 PM EST Sat Nov 27 2021 This Hazardous Weather Outlook is for northwest Pennsylvania. .DAY ONE...This afternoon and tonight. Snow of generally around 2 inches is expected from this evening through the overnight. Locally slippery travel conditions are expected on any untreated surfaces. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A second wave of snowfall will occur late Sunday through Monday morning. Snowfall rates may become high in lake enhanced snow bands. At this time, around 2 inches of snowfall accumulation is expected, though locally higher amounts are possible in the heaviest bands. Untreated surfaces may become slick. An advisory may be needed. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
The cooperative observer at Davis reported 2.9 inches of snow.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in West Virginia in 2021Every state in 2021This day in weather historyWarnings in West Virginia, November 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 992072.